Amsterdam is most definitely one of those cities that everyone should visit at least once in their life and I can highly recommend the Dutch PHP Conference (DPC) as a reason to make that visit. This is also the second year that DPC has been joined by the Dutch Mobile Conference, a ticket to one gives you access to the other. This leads to a great mix of developers from different disciplines and generally means that regardless of your particular skill-set, there will be a talk running whose subject is completely new to you.

He walks through the (non-tutorial) days of the conference mentioning a few of the sessions (covering things like domain models, Lisp and hypermedia in APIs). He talks some about the keynotes - Google's Ade Oshineye on "A Web of Identity", Eamon Leonard's "Growth Hacking for Humans." and Kevlin Henney's "Worse is Better, for Better or for Worse" He also gave a talk himself about sorting and searching algorithms